Sec.  80.863   Antenna system.

   (a) An antenna system must be installed which is as nondirectional and as
   efficient as is practicable for the transmission and reception of radio
   ground  waves  over seawater. The installation and construction of the
   required antenna must insure operation in time of emergency.

   (b) If the required antenna is suspended between masts or other supports
   liable to whipping, a safety link which, under heavy stress, will operate to
   greatly reduce such stress without breakage of the antenna, the halyards, or
   other antenna-supporting elements, must be installed.

   (c)  When an electrical ground connection is used as an element of the
   antenna system, the connection must be efficient.